diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index d0eb2280d8d..77e729d4e4f 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1135,7 +1135,16 @@ int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n) } trace_i915_ring_wait_begin(ring); - end = jiffies + 3 * HZ; + if (drm_core_check_feature(dev, DRIVER_GEM)) + /* With GEM the hangcheck timer should kick us out of the loop, + * leaving it early runs the risk of corrupting GEM state (due + * to running on almost untested codepaths). But on resume + * timers don't work yet, so prevent a complete hang in that + * case by choosing an insanely large timeout. */ + end = jiffies + 60 * HZ; + else + end = jiffies + 3 * HZ; + do { ring->head = I915_READ_HEAD(ring); ring->space = ring_space(ring); |